US2595771A - Electric fixture for elongated tubular lamps - Google Patents
Electric fixture for elongated tubular lamps Download PDFInfo
- Publication number
- US2595771A US2595771A US789314A US78931447A US2595771A US 2595771 A US2595771 A US 2595771A US 789314 A US789314 A US 789314A US 78931447 A US78931447 A US 78931447A US 2595771 A US2595771 A US 2595771A
- Authority
- US
- United States
- Prior art keywords
- fitting
- lamp
- elongated tubular
- electric fixture
- tubular lamps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Definitions
- This invention relates to fittings for use with tubular electric lamps of the gas-discharge type, and particularly to fittings. for use in public vehicles, such as trams and buses, the object of the invention being to provide an improved fitting enabling efiicient use of the light and a pleasing appearance to be obtained in a simple and convenient manner.
- the invention comprises a fitting made from translucent or transparent material, and formed with a trough for accommodating the lamp, the trough being only a little larger in cross section than the diameter of the lamp, and the fitting being adapted to utilise the light from the enclosed part of the lamp.
- Figure 1, 2, 3 and 4 are cross sections, through the central parts of four different and representative forms of fittings embodying the invention.
- Figure 5 is a cross section taken through one end of the fitting corresponding to Figure 1, and showing current supply terminals.
- Figure 6 is a side elevation and Figure 7 a plan showing to a smaller scale a fitting corresponding to the sections shown at Figures '1 and 5,.the latter figures being taken respectively on thefllines l--l and 55 of Figure 6.
- Figure 8 is a fragmentary plan showing to the same scale as Figure 5 one of the lamp-retaining caps. 4
- the fitting a from any appropriate translucent or transparent material, such as glass, or material of the synthetic resin type.
- the fitting may be adapted to be mounted on the wall, or in a corner between a pair of walls or a wall and ceiling.
- a trough b adapted to accommodate the tubular lamp 0.
- the trough is made only a little larger than the cross section of the lamp as will be seen in any of the cross sections at Figures 1 to 4. Thus, for example, it is not so much larger as to allow the fingers of a hand to be placed between the lamp and the sides of the trough.
- each end of the fitting are contained current supply terminals d with which are associated spring contacts e as shown in Figure 5, for co-operating with the pairs of contact pins f at ends of the lamp, and preferably at each end of the fitting a pair of open-ended slots g are formed to allow the pins to be pushed into engagement with the contacts, the latter being insulated from each other by the part of the fitting lying between the slots.
- a pair of caps h are provided on the fitting for engagement with the lamp ends.
- these end caps are pivoted on the fitting at i and are adapted to be held in the operative position by any convenient spring means such as concavoconvex projections 7 adapted to snap into engagement with complementary parts on the sides of the fitting.
- fixing screws k may be provided at the ends of the fitting.
- the configuration of the fitting may be of any of a variety of forms as exemplified by Figures 1 to 4, provided that it is adapted to reflect internally and transmit light received from the sides and back of the lamp, that is to say from the parts of the lamp which are enclosed by the trough.
- the fitting is required to be mounted in a rounded corner, the rear surface of the fitting is made to a corresponding convex shape, and the outer surfaces of the fitting lying between the rear surface and the edges of the trough are made concave.
- the fitting is preferably solid, but it may be hollow.
- the outer surfaces of the fitting may be smooth, fluted, facetted or otherwise formed, provided always that they serve to utilise the light from the rear and sides of the lamp, and thereby supplement the direct light emitted by the exposed front of the lamp, the supplementary light being transmitted at the sides and/or ends of the fitting.
- the rear surface may be transversely ridged, or otherwise facetted.
- a rear surface may have formed on or secured to it a silvered or coloured reflecting surface.
- a fitting as above described is not only simple in construction, and adapted to utilise the light efficiently and in a pleasing manner, but it also enables the lamp to be easily placed in position, and moreover it afiords protection to the lamp against accidental breakage.
- the back of the lamp is inaccessible, and a pressure exerted on the exposed front of the lamp merely moves it into contact with the'base of the trough.
- Means for supporting a tubular electric lamp of the gas-discharge type having terminals at its ends with one side of the lamp exposed comprising in combination a fitting made of light-transmitting material, and having formed in it a lamp-receiving trough which is open at the front of the fitting, the rear of the fitting being of greater over-all width than the front of the fitting so that the latter can serve to reflect internally, as well as transmit, light from the part of the lamp enclosed by the trough, electric current supply terminals and contacts for said terminals in the ends of the fitting, and means for enabling the fitting to be secured in a service position.
Description
May 6, 1952 Filed Dec. 2, 1947 T. CURZON ELECTRIC FIXTURE FOR ELONGATED TUBULAR LAMPS 3 Sheets-Sheet 1 May 6, 1952 CURZQN 2,595,771
ELECTRIC FIXTURE FOR ELONGATED TUBULAR LAMPS Filed Dec. 2, 1947 3 Sheets-Sheet 2 May 6, 1952 v CURZQN 2,595,771
ELECTRIC FIXTURE FOR ELONGATED TUBULAR LAMPS Filed Dec. 2, 1947 3 Shee ts-Sheet 3 F- PQ\\ Q d lmu C D L C PQ "K; Tg W L. Q JMJMLwJJLJL I Eb .29 F LL L a K N D K J M c Q ill "lzauamaz Patented May 6, 1952 OFFICE;
ELECTRIC FIXTURE FOR ELONGATED TUBULAR LAMPS Thomas Curzon, London, England, assignor to C. A. V. Limited, London, England Application December 2, 1947, Serial No. 789,314 In Great Britain October 18, 1946 1 Claim. 1
This invention relates to fittings for use with tubular electric lamps of the gas-discharge type, and particularly to fittings. for use in public vehicles, such as trams and buses, the object of the invention being to provide an improved fitting enabling efiicient use of the light and a pleasing appearance to be obtained in a simple and convenient manner.
The invention comprises a fitting made from translucent or transparent material, and formed with a trough for accommodating the lamp, the trough being only a little larger in cross section than the diameter of the lamp, and the fitting being adapted to utilise the light from the enclosed part of the lamp.
In the accompanying drawings,
Figure 1, 2, 3 and 4 are cross sections, through the central parts of four different and representative forms of fittings embodying the invention.
Figure 5 is a cross section taken through one end of the fitting corresponding to Figure 1, and showing current supply terminals.
Figure 6 is a side elevation and Figure 7 a plan showing to a smaller scale a fitting corresponding to the sections shown at Figures '1 and 5,.the latter figures being taken respectively on thefllines l--l and 55 of Figure 6.
Figure 8 is a fragmentary plan showing to the same scale as Figure 5 one of the lamp-retaining caps. 4
Referring to any of the accompanying drawings, I make the fitting a from any appropriate translucent or transparent material, such as glass, or material of the synthetic resin type. The fitting may be adapted to be mounted on the wall, or in a corner between a pair of walls or a wall and ceiling. Along the front of the fitting is formed a trough b adapted to accommodate the tubular lamp 0. In cross section the trough is made only a little larger than the cross section of the lamp as will be seen in any of the cross sections at Figures 1 to 4. Thus, for example, it is not so much larger as to allow the fingers of a hand to be placed between the lamp and the sides of the trough.
Within each end of the fitting are contained current supply terminals d with which are associated spring contacts e as shown in Figure 5, for co-operating with the pairs of contact pins f at ends of the lamp, and preferably at each end of the fitting a pair of open-ended slots g are formed to allow the pins to be pushed into engagement with the contacts, the latter being insulated from each other by the part of the fitting lying between the slots. For holding the lamp in position, a pair of caps h are provided on the fitting for engagement with the lamp ends. In the examples shown at Figures 6 and 7, these end caps are pivoted on the fitting at i and are adapted to be held in the operative position by any convenient spring means such as concavoconvex projections 7 adapted to snap into engagement with complementary parts on the sides of the fitting. For securing the fitting in position fixing screws k may be provided at the ends of the fitting.
The configuration of the fitting may be of any of a variety of forms as exemplified by Figures 1 to 4, provided that it is adapted to reflect internally and transmit light received from the sides and back of the lamp, that is to say from the parts of the lamp which are enclosed by the trough. When the fitting is required to be mounted in a rounded corner, the rear surface of the fitting is made to a corresponding convex shape, and the outer surfaces of the fitting lying between the rear surface and the edges of the trough are made concave. Further the fitting is preferably solid, but it may be hollow. The outer surfaces of the fitting may be smooth, fluted, facetted or otherwise formed, provided always that they serve to utilise the light from the rear and sides of the lamp, and thereby supplement the direct light emitted by the exposed front of the lamp, the supplementary light being transmitted at the sides and/or ends of the fitting. To obtain diffusion of the light from behind the lamp to the end portions of the fitting, the rear surface may be transversely ridged, or otherwise facetted. Also if desired a rear surface may have formed on or secured to it a silvered or coloured reflecting surface.
A fitting as above described is not only simple in construction, and adapted to utilise the light efficiently and in a pleasing manner, but it also enables the lamp to be easily placed in position, and moreover it afiords protection to the lamp against accidental breakage. The back of the lamp is inaccessible, and a pressure exerted on the exposed front of the lamp merely moves it into contact with the'base of the trough.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
Means for supporting a tubular electric lamp of the gas-discharge type having terminals at its ends with one side of the lamp exposed, comprising in combination a fitting made of light-transmitting material, and having formed in it a lamp-receiving trough which is open at the front of the fitting, the rear of the fitting being of greater over-all width than the front of the fitting so that the latter can serve to reflect internally, as well as transmit, light from the part of the lamp enclosed by the trough, electric current supply terminals and contacts for said terminals in the ends of the fitting, and means for enabling the fitting to be secured in a service position.
THOMAS CURZON.
4 REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date Claspy Oct. 14, 1941 Guth Mar. 24, 1942 Roberts Jan. 2, 1945 Goldberg July 23, 1946 Beals July 29, 1947
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2595771X | 1946-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2595771A true US2595771A (en) | 1952-05-06 |
Family
ID=10911127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US789314A Expired - Lifetime US2595771A (en) | 1946-10-18 | 1947-12-02 | Electric fixture for elongated tubular lamps |
Country Status (1)
Country | Link |
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US (1) | US2595771A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1014231B (en) * | 1953-12-31 | 1957-08-22 | Aeg | Arrangement for fluorescent lamps |
US4691268A (en) * | 1985-10-21 | 1987-09-01 | Benson Walter L | Cast resin light-emitting display device |
US4734836A (en) * | 1984-09-29 | 1988-03-29 | Masataka Negishi | Lighting apparatus |
US5931565A (en) * | 1997-07-02 | 1999-08-03 | Osram Sylvania Inc. | Tubular lamp and reflector with two flexibly coupled sections |
WO2002011171A1 (en) * | 2000-08-01 | 2002-02-07 | Osram Sylvania Inc. | Aperture lamp, aperture lamp housing and aperture lamp assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2259152A (en) * | 1940-08-28 | 1941-10-14 | Phoenix Glass Company | Lighting fixture |
US2277433A (en) * | 1940-05-01 | 1942-03-24 | Edwin F Guth | Plastic diffuser |
US2366216A (en) * | 1942-02-14 | 1945-01-02 | Dorsey Spencer H | Shield for mercury vapor lamps |
US2404627A (en) * | 1943-10-29 | 1946-07-23 | Abraham A Goldberg | Light amplifying attachment for neon tubes |
US2424874A (en) * | 1943-04-02 | 1947-07-29 | Miller Co | Lamp retainer for fluorescent lamps and the like |
-
1947
- 1947-12-02 US US789314A patent/US2595771A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2277433A (en) * | 1940-05-01 | 1942-03-24 | Edwin F Guth | Plastic diffuser |
US2259152A (en) * | 1940-08-28 | 1941-10-14 | Phoenix Glass Company | Lighting fixture |
US2366216A (en) * | 1942-02-14 | 1945-01-02 | Dorsey Spencer H | Shield for mercury vapor lamps |
US2424874A (en) * | 1943-04-02 | 1947-07-29 | Miller Co | Lamp retainer for fluorescent lamps and the like |
US2404627A (en) * | 1943-10-29 | 1946-07-23 | Abraham A Goldberg | Light amplifying attachment for neon tubes |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1014231B (en) * | 1953-12-31 | 1957-08-22 | Aeg | Arrangement for fluorescent lamps |
US4734836A (en) * | 1984-09-29 | 1988-03-29 | Masataka Negishi | Lighting apparatus |
US4691268A (en) * | 1985-10-21 | 1987-09-01 | Benson Walter L | Cast resin light-emitting display device |
US5931565A (en) * | 1997-07-02 | 1999-08-03 | Osram Sylvania Inc. | Tubular lamp and reflector with two flexibly coupled sections |
WO2002011171A1 (en) * | 2000-08-01 | 2002-02-07 | Osram Sylvania Inc. | Aperture lamp, aperture lamp housing and aperture lamp assembly |
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